private static extern bool ClientToScreen(IntPtr window, out Point2D coords);
private static void AAEdgeCopy(byte* addr, int width, int stride, double x1, double x2, int y, byte* srcAddr, int srcWidth, int srcStride, Point2D offset, bool left, int clipMin = int.MinValue, int clipMax = int.MaxValue)
{
if(x1 > x2) Util.Swap(ref x1, ref x2);
addr += (y * width * stride);
srcAddr += ((y + offset.Y) * srcWidth * stride);
double xmin;
double xmax = x1;
double ymin;
double ymax = 1;
double dydx = -1 / (x2 - x1);
if(x2 == x1) dydx = 0;
double alpha;
do
{
xmin = xmax;
xmax = Min((int)xmin + 1, x2);
ymin = ymax;
ymax = ymin + (xmax - xmin) * dydx;
if(xmin < clipMin) continue;
if(xmin > clipMax) break;
alpha = (xmin - (int)xmin) * ymin;
alpha += (ymax + ymin) * (xmax - xmin) / 2;
ARGB color = *(ARGB*)(srcAddr + (((int)xmin + offset.X) * srcStride));
*(ARGB*)(addr + ((int)xmin * stride)) &= new ARGB((byte)(color.A * (left ? (1 - alpha) : alpha)), color.RGB);
}while(xmax != x2);
}
protected override void WndProc(ref Message m)
{
try
{
int code = m.Msg;
DualParameter wParam = (DualParameter)m.WParam;
DualParameter lParam = (DualParameter)m.LParam;
switch (m.Msg)
{
case WM_CLOSE:
{
if(OnClose != null) OnClose();
return;
}
case WM_SIZE:
{
Size = new Point2D(lParam.LowWord, lParam.HighWord);
if(OnResize != null) OnResize(Size);
break;
}
case WM_PAINT:
{
PaintData data;
IntPtr screenDC = BeginPaint(Handle, out data);
WinAPIUtils.Assert(screenDC != IntPtr.Zero);
//blit display buffer to screen
Image buffer = BufferStrategy.GetDisplayBuffer().Image;
bool success = BitBlt(screenDC, 0, 0, buffer.Width, buffer.Height, buffer.GetDeviceContext(), 0, 0, SRCCOPY);
WinAPIUtils.Assert(success);
EndPaint(Handle, ref data);
return;
}
case WM_SETFOCUS:
{
IsFocused = true;
break;
}
case WM_KILLFOCUS:
{
IsFocused = false;
break;
}
case WM_MOUSEMOVE:
{
//get move info
Point2D mouseCoords = (Point2D)lParam;
Point2D delta = mouseCoords - PrevMouseCoords;
//if mouse was previously outside window
if(!IsMouseInWindow)
{
IsMouseInWindow = true;
if(OnMouseEnter != null) OnMouseEnter();
//suppress inaccurate delta value
delta = new Point2D(0, 0);
//start tracking mouse so we recieve WM_MOUSELEAVE
TRACKMOUSEEVENT eventTrack = new TRACKMOUSEEVENT(Handle);
bool success = TrackMouseEvent(ref eventTrack);
WinAPIUtils.Assert(success);
}
//call event
if(OnMouseMove != null)
{
OnMouseMove(mouseCoords, delta);
PrevMouseCoords = mouseCoords;
//consume
return;
}else
{
PrevMouseCoords = mouseCoords;
}
break;
}
case WM_MOUSELEAVE:
{
IsMouseInWindow = false;
if(OnMouseExit != null) OnMouseExit();
break;
}
case WM_LBUTTONDOWN:
{
if(OnMousePress != null)
{
OnMousePress(MouseButton.LEFT);
//consume
return;
}
break;
}
case WM_LBUTTONUP:
{
if(OnMouseRelease != null)
{
OnMouseRelease(MouseButton.LEFT);
//consume
return;
}
break;
}
case WM_RBUTTONDOWN:
{
if(OnMousePress != null)
{
OnMousePress(MouseButton.RIGHT);
//consume
return;
}
break;
}
case WM_RBUTTONUP:
{
if(OnMouseRelease != null)
{
OnMouseRelease(MouseButton.RIGHT);
//consume
return;
}
break;
}
case WM_MBUTTONDOWN:
{
if(OnMousePress != null)
{
OnMousePress(MouseButton.MIDDLE);
//consume
return;
}
break;
}
case WM_MBUTTONUP:
{
if(OnMouseRelease != null)
{
OnMouseRelease(MouseButton.MIDDLE);
//consume
return;
}
break;
}
case WM_XBUTTONDOWN:
{
if(OnMousePress != null)
{
MouseButton button = (wParam.HighWord == 0x0001 ? MouseButton.EXTRA_1 : MouseButton.EXTRA_2);
OnMousePress(button);
//consume
return;
}
break;
}
case WM_XBUTTONUP:
{
if(OnMouseRelease != null)
{
MouseButton button = (wParam.HighWord == 0x0001 ? MouseButton.EXTRA_1 : MouseButton.EXTRA_2);
OnMouseRelease(button);
//consume
return;
}
break;
}
case WM_MOUSEWHEEL:
{
if(OnMouseWheel != null)
{
int delta = (wParam.HighWord / WHEEL_DELTA);
OnMouseWheel(delta);
//consume
return;
}
break;
}
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
{
if(OnKeyPress != null)
{
//only post event if not a repeat
//aka previous state up
if((lParam.Number & 0x40000000) == 0)
{
KeyboardButton button = (KeyboardButton)wParam.Number;
OnKeyPress(button);
//consume
return;
}
}
break;
}
case WM_KEYUP:
case WM_SYSKEYUP:
{
if(OnKeyRelease != null)
{
//only post event if not a repeat
//aka previous state down
if((lParam.Number & 0x40000000) != 0)
{
KeyboardButton button = (KeyboardButton)wParam.Number;
OnKeyRelease(button);
//consume
return;
}
}
break;
}
case WM_CHAR:
{
if(OnCharTyped != null)
{
char c = (char)wParam.Number;
bool repeat = ((lParam.Number & 0x40000000) != 0);
//ok if char events are repeats
OnCharTyped(c, repeat);
//consume
return;
}
break;
}
}
}catch(System.Threading.ThreadAbortException)
{
//do nothing, simply means we called Stop on the message thread
}catch(Exception ex)
{
Console.WriteLine(ex);
}
base.WndProc(ref m);
}
protected void Render(Image image, bool useMarker, int markerLoc = -1)
{
image.Fill(BackColor.Value);
string text = Text.Value;
if(text == null) text = "null";
int length = text.Length;
if(length == 0)
{
return;
}
if(!LockFont)
{
Point2D idealSize = new Point2D(image.Width / (Math.Max(length, lengthOverride) - Margin.Value.X * 2), image.Height - Margin.Value.Y * 2);
if(CurrentFont == null || CurrentFont.Size != idealSize)
{
CurrentFont = Font.GetFont(idealSize, Style);
}
}
int x = 0;
int y = 0;
switch(HorizontalJustify)
{
case Justify.MIN: x = Margin.Value.X; break;
case Justify.MIDDLE: x = (image.Width / 2) - (CurrentFont.Width * length / 2); break;
case Justify.MAX: x = image.Width - (CurrentFont.Width * length) - Margin.Value.X; break;
}
switch(VerticalJustify)
{
case Justify.MIN: y = Margin.Value.Y; break;
case Justify.MIDDLE: y = (image.Height / 2) - (CurrentFont.Height / 2); break;
case Justify.MAX: y = image.Height - CurrentFont.Height - Margin.Value.Y; break;
}
CurrentFont.Draw(image, x, y, text, TextColor.Value);
if(useMarker)
{
CurrentFont.Draw(image, x + (int)((markerLoc - .5) * CurrentFont.Width), y, '|', TextColor.Value);
}
}
/// <summary>
/// Basic implementation of a map src solid filling renderer.
/// </summary>
/// <param name="clip">The clipping rectangle.</param>
/// <param name="scanner">The scans to render.</param>
/// <param name="dest">The map to render to.</param>
/// <param name="src">The source map.</param>
/// <param name="offset">The offset of the source map.</param>
/// <param name="mode">The color blending mode to use.</param>
/// <param name="isAA">True if anti-aliasing is enabled.</param>
public static void SolidCopyRender(Rectangle clip, Scanner scanner, DataMap<ARGB> dest, DataMap<ARGB> src, Point2D offset, ColorMode mode = ColorMode.NORMAL, bool isAA = true)
{
IUnsafeMap uDest = dest as IUnsafeMap;
IUnsafeMap uSrc = src as IUnsafeMap;
if(uDest == null)
{
throw new InvalidOperationException("Destination image does not support advanced color rendering!");
}
if(uSrc == null)
{
throw new InvalidOperationException("Source image does not support advanced color rendering!");
}
byte* addr = uDest.BeginUnsafeOperation();
int width = dest.Width;
int stride = uDest.GetStride();
byte* srcAddr = uSrc.BeginUnsafeOperation();
int srcWidth = src.Width;
int srcStride = uSrc.GetStride();
for(int y = scanner.yMin; y <= scanner.yMax; y++)
{
double x1 = Max(scanner[y].min, clip.Min.X);
double x2 = Min(scanner[y].max, clip.Max.X);
//Anti-Aliasing variables
//x1 vars are x min side
//x2 vars are x max side
//xb vars are y min side
//xa vars are y max side
double x1b = 0, x1a = 0;
double x2b = 0, x2a = 0;
int left;
int right;
if(isAA)
{
bool hasMin = false, hasMax = false;
//if not at ymin or ymin is a clipped min (aka we have another "ghost" scan)
if(y > scanner.yMin || scanner.isYMinClipped)
{
x1b = Max(scanner[y - 1].min, clip.Min.X);
x2b = Min(scanner[y - 1].max, clip.Max.X);
x1b = (x1b + x1) / 2;
x2b = (x2b + x2) / 2;
hasMin = true;
}
//if not at ymax or ymax is a clipped max (aka we have another "ghost" scan)
if(y < scanner.yMax || scanner.isYMaxClipped)
{
x1a = Max(scanner[y + 1].min, clip.Min.X);
x2a = Min(scanner[y + 1].max, clip.Max.X);
x1a = (x1a + x1) / 2;
x2a = (x2a + x2) / 2;
hasMax = true;
}
if(!hasMin)
{
//if single line shape, just make everything literal
if(!hasMax)
{
x1b = x1a = x1;
x2b = x2a = x2;
}else//if at ymin, extrapolate max->current into current->min
{
x1b = x1 - (x1a - x1);
x2b = x2 - (x2a - x2);
}
}else//if at ymax, extrapolate min->current into current->max
if(!hasMax)
{
x1a = x1 + (x1 - x1b);
x2a = x2 + (x2 - x2b);
}
//if aa, round toward center, otherwise round away to match default renderer
left = (int)Math.Ceiling(Max(x1b, x1a));
right = (int)Math.Floor(Min(x2b, x2a));
}else
{
//if not aa, round away to match default renderer
left = (int)Math.Floor(x1);
right = (int)Math.Ceiling(x2);
}
//if valid center
if(left <= right)
{
//solid fill with blend modes
byte* ptr = addr + (left + (y * width)) * stride;
byte* srcPtr = srcAddr + ((left + offset.X) + ((y + offset.Y) * srcWidth)) * srcStride;
byte* endPtr = ptr + (right - left + 1) * stride;
switch(mode)
{
case ColorMode.BLEND:
{
while(ptr != endPtr)
{
//*((ARGB*)ptr) &= *((ARGB*)srcPtr);
//manually inline blending
ARGB srcColor = *(ARGB*)srcPtr;
ARGB color = *(ARGB*)ptr;
int aComp = 255 - srcColor.A;
color = new ARGB{A = (byte)(srcColor.A + color.A),
R = (byte)(((srcColor.R * srcColor.A) + (color.R * aComp)) >> 8),
G = (byte)(((srcColor.G * srcColor.A) + (color.G * aComp)) >> 8),
B = (byte)(((srcColor.B * srcColor.A) + (color.B * aComp)) >> 8)};
*(ARGB*)ptr = color;
ptr += stride;
srcPtr += srcStride;
}
break;
}
case ColorMode.NORMAL:
{
while(ptr != endPtr)
{
*((ARGB*)ptr) = *((ARGB*)srcPtr);
ptr += stride;
srcPtr += srcStride;
}
break;
}
case ColorMode.MASK:
{
while(ptr != endPtr)
{
if((*((ARGB*)srcPtr)).A != 0)
*((ARGB*)ptr) = *((ARGB*)srcPtr);
ptr += stride;
srcPtr += srcStride;
}
break;
}
}
}
//if aa, add smoothing to edges
if(isAA)
{
int center = (left + right) / 2;
if(Min(x1b, x1a) != left)
AAEdgeCopy(addr, width, stride, x1b, x1a, y, srcAddr, srcWidth, srcStride, offset, true, clipMax: Min(center, clip.Max.X));
if(Max(x2b, x2a) != right)
AAEdgeCopy(addr, width, stride, x2b + 1, x2a + 1, y, srcAddr, srcWidth, srcStride, offset, false, clipMin: Max(center + 1, clip.Min.X));
}
}
uDest.EndUnsafeOperation();
uSrc.EndUnsafeOperation();
}
public MouseWheelEventArgs(MouseWheelEventArgs args)
: base(args)
{
Coords = args.Coords;
Delta = args.Delta;
}
private void OnMove(Point2D coords, Point2D delta)
{
mouseCoords.Value = coords;
}
public MouseMoveEventArgs(Point2D coords, Point2D delta)
{
Coords = coords;
Delta = delta;
}
public MouseWheelEventArgs(Point2D coords, int delta)
{
Coords = coords;
Delta = delta;
}
public MouseButtonEventArgs(MouseButtonEventArgs args)
: base(args)
{
Coords = args.Coords;
Button = args.Button;
Pressed = args.Pressed;
}
public MouseButtonEventArgs(Point2D coords, MouseButton button, bool pressed)
{
Coords = coords;
Button = button;
Pressed = pressed;
}
/// <summary>
/// Resizes this <see cref="Root"/> to ensure it always matches its <see cref="Window"/>
/// </summary>
/// <param name="size">The new size.</param>
private void OnResize(Point2D size)
{
Size.Value = size;
}
/// <summary>
/// Finds every visible, non-hidden component in the given location in decreasing z order.
/// </summary>
/// <param name="location">The location.</param>
/// <param name="findInvisible">If true, the search will include invisible and hidden components.</param>
/// <param name="inputMode">If true, uses input visible and hidden.</param>
/// <returns>The components in z order.</returns>
public Component[] FindAll(Point2D location, bool findInvisible = false, bool inputMode = false)
{
return FindAll(new Rectangle{Min = location, Max = location}, findInvisible, inputMode);
}
internal void MouseMoveEvent(Point2D mouseCoords, Point2D delta)
{
if(Parent != null)
{
Point2D oldCoords = mouseCoords - delta;
//store all components that are guaranteed a call
ActiveComponents.Clear();
foreach(MouseButton button in Enum.GetValues(typeof(MouseButton)))
{
ActiveComponents.UnionWith(MouseActiveComponents.GetValues(button));
}
//add all entered components to exited
//if they don't get removed, then we schedule an exit
ExitedComponents.Clear();
ExitedComponents.UnionWith(EnteredComponents);
CheckZone();
//prepare event list
Component[] eventList = Parent.FindAll(new Rectangle{Min = VectorUtil.Min(mouseCoords, oldCoords), Max = VectorUtil.Max(mouseCoords, oldCoords)}, false, true);
//true if the cursor was set to a special value
bool cursorSet = false;
//true if the drop zone was updated
bool zoneSet = false;
//perform normal event passing
foreach(Component comp in eventList)
{
//if not set yet and special cursor
if(!cursorSet &&
comp.HoverCursor.Value != Cursor.UNSPECIFIED)
{
cursorSet = true;
if(previousCursor == Cursor.UNSPECIFIED) previousCursor = Parent.WindowObj.CurrentCursor;
Parent.WindowObj.CurrentCursor = comp.HoverCursor.Value;
}
//if haven't entered yet
if(!EnteredComponents.Contains(comp))
{
//call enter
comp.InvokeMouseEnter();
EnteredComponents.Add(comp);
}else //else prevent automatic exit
{
ExitedComponents.Remove(comp);
}
if(grabbedComponent != null && !zoneSet && comp is IDropZone && comp.Bounds.Contains(mouseCoords) && CurrentZone != comp)
{
IDropZone zone = (IDropZone)comp;
if(zone.Handles(grabbedComponent))
{
CurrentZone = zone;
zoneSet = true;
}
}
//call event with local mouse coords
comp.InvokeMouseMove(mouseCoords - (Point2D)comp.Position.Value, delta);
//remove from active components (we don't care if it doesn't contain the element, it'll just do nothing)
ActiveComponents.Remove(comp);
//consume if opaque
if(comp.InputOpaque.Value)
{
break;
}
}
//if cursor was not
if(!cursorSet && previousCursor != Cursor.UNSPECIFIED)
{
Parent.WindowObj.CurrentCursor = previousCursor;
}
//satisfy all waiting components
foreach(Component comp in ActiveComponents)
{
//call event with local mouse coords
comp.InvokeMouseMove(mouseCoords - (Point2D)comp.Position.Value, delta);
}
//remove all exited from entered
EnteredComponents.ExceptWith(ExitedComponents);
//exit all exited
foreach(Component comp in ExitedComponents)
{
//call exit
comp.InvokeMouseExit();
}
}
}
